Home / 987,942.80-1,481,901.24-239,986.64

Finding the Fourth Proportional to 987,942.80, 1,481,901.24 and 239,986.64

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Solution

The fourth proportional to 987,942.80, 1,481,901.24 and 239,986.64 is: 359,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,942.80 : 1,481,901.24 = 239,986.64 : x
  2. Step 2: Convert to fraction form
    987,942.80/1,481,901.24 = 239,986.64/x
  3. Step 3: Cross multiply
    987,942.80x = 1,481,901.24 × 239,986.64
  4. Step 4: Simplify right side
    987,942.80x = 355,636,499,399.43
  5. Step 5: Solve for x
    x = 355,636,499,399.43/987,942.80
  6. Step 6: Final answer
    x = 359,976.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.